Interview Data
Structured questionnaires containing discursive and objective questions were used to collect interview data. The structured questionnaires were completed by the pharmacist in the presence of the researcher. The structured questionnaires did not require the identification of the pharmacists, therefore, guaranteeing anonymity. The questionnaire was used to collect the following data: a) socioeconomic data; b) training time; and c) knowledge about medication. The interviews were performed in order to assess the level of instruction about the herbal medicine as well the level of knowledge about indication, contraindication, treatment time, dosage, care in use, and interactions ofH.perforatum .